package com.ruoyi.project.oss;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import com.j256.simplemagic.ContentInfoUtil;

import com.ruoyi.common.utils.file.FileUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.File;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;

@Service
@Slf4j
public class AliyunOSSUtil {
    @Autowired
    private  ConstantProperties constantProperties;
    private static SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

    /**
     * 上传
     * @param file
     * @return
     */
    public  String upload(File file){
        log.info("=========>OSS文件上传开始："+file.getName());
        String endpoint= constantProperties.getEndpoint();
        String accessKeyId= constantProperties.getKeyid();
        String accessKeySecret=constantProperties.getKeysecret();
        String bucketName=constantProperties.getBucketname();
        String fileHost=constantProperties.getFilehost();
        System.out.println(endpoint+"endpoint");
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        String dateStr = format.format(new Date());
        if(null == file){
            return null;
        }

        OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
        try {
            //容器不存在，就创建
            if(! ossClient.doesBucketExist(bucketName)){
                ossClient.createBucket(bucketName);
                CreateBucketRequest createBucketRequest = new CreateBucketRequest(bucketName);
                createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead);
                ossClient.createBucket(createBucketRequest);
            }
            //创建文件路径
//            String fileUrl = fileHost+"/"+(dateStr + "/" + UUID.randomUUID().toString().replace("-","")+"-"+file.getName());
            //创建文件key
            String fileKey = UUID.randomUUID().toString().replace("-","");
            //上传文件
//            String contentType = new MimetypesFileTypeMap().getContentType(file);
            String mimeType = ContentInfoUtil.findExtensionMatch(file.getName()).getMimeType();
            ObjectMetadata objectMetadata = new ObjectMetadata();
            objectMetadata.setContentType(mimeType);

            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, fileKey, file);
            putObjectRequest.setMetadata(objectMetadata);
            PutObjectResult result = ossClient.putObject(putObjectRequest);

            //设置权限 这里是公开读
            ossClient.setBucketAcl(bucketName,CannedAccessControlList.PublicRead);
            if(null != result){
                String url = this.getUrl(fileKey);
//
//                OssFile ossFile = new OssFile();
//                ossFile.setFileKey(fileKey);
//                ossFile.setFileUrl(url);
//                ossFile.setFileType(mimeType);
//                ossFile.setFileName(file.getName());
//                ossFile.setCreateTime(new Date(System.currentTimeMillis()));
//                ossFileService.insertOssFile(ossFile);
                log.info("==========>OSS文件上传成功,OSS地址："+url);
                FileUtils.delteTempFile(file);
                return url;
            }
        }catch (OSSException oe){
            log.error(oe.getMessage());
        }catch (ClientException ce){
            log.error(ce.getMessage());
        }finally {
            //关闭
            ossClient.shutdown();
        }
        return null;
    }


    /**
     * 删除
     * @param fileKey
     * @return
     */
    public  String deleteBlog(String fileKey){
        log.info("=========>OSS文件删除开始");
        String endpoint= constantProperties.getEndpoint();
        String accessKeyId= constantProperties.getKeyid();
        String accessKeySecret=constantProperties.getKeysecret();
        String bucketName=constantProperties.getBucketname();
        String fileHost=constantProperties.getFilehost();
        try {
            OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);

            if(!ossClient.doesBucketExist(bucketName)){
                log.info("==============>您的Bucket不存在");
                return "您的Bucket不存在";
            }else {
                log.info("==============>开始删除Object");
                ossClient.deleteObject(bucketName,fileKey);
                log.info("==============>Object删除成功："+fileKey);
                return "==============>Object删除成功："+fileKey;
            }
        }catch (Exception ex){
            log.info("删除Object失败",ex);
            return "删除Object失败";
        }
    }

    /**
     * 查询文件名列表
     * @param bucketName
     * @return
     */
    public List<String> getObjectList(String bucketName){
        List<String> listRe = new ArrayList<>();
        String endpoint= constantProperties.getEndpoint();
        String accessKeyId= constantProperties.getKeyid();
        String accessKeySecret=constantProperties.getKeysecret();
        try {
            log.info("===========>查询文件名列表");
            OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
            ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
            //列出11111目录下今天所有文件
            listObjectsRequest.setPrefix("11111/"+format.format(new Date())+"/");
            ObjectListing list = ossClient.listObjects(listObjectsRequest);
            for(OSSObjectSummary objectSummary : list.getObjectSummaries()){
                System.out.println(objectSummary.getKey());
                listRe.add(objectSummary.getKey());
            }
            return listRe;
        }catch (Exception ex){
            log.info("==========>查询列表失败",ex);
            return new ArrayList<>();
        }
    }

    /**
     * 获得url链接
     *
     * @param key
     * @return
     */
    public String getUrl(String key) {
        // 设置URL过期时间为10年  3600l* 1000*24*365*10
        String endpoint= constantProperties.getEndpoint();
        String accessKeyId= constantProperties.getKeyid();
        String accessKeySecret=constantProperties.getKeysecret();
        String bucketName=constantProperties.getBucketname();
        OSSClient ossClient = new OSSClient(endpoint,accessKeyId,accessKeySecret);
        Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 10);
        // 生成URL
        URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
        if (url != null) {
            return url.toString();
        }
        return null;
    }

}